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Finding the Fourth Proportional to 295,808.20, 443,990.70 and 155,667.40

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Solution

The fourth proportional to 295,808.20, 443,990.70 and 155,667.40 is: 233,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,808.20 : 443,990.70 = 155,667.40 : x
  2. Step 2: Convert to fraction form
    295,808.20/443,990.70 = 155,667.40/x
  3. Step 3: Cross multiply
    295,808.20x = 443,990.70 × 155,667.40
  4. Step 4: Simplify right side
    295,808.20x = 69,114,877,893.18
  5. Step 5: Solve for x
    x = 69,114,877,893.18/295,808.20
  6. Step 6: Final answer
    x = 233,647.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.